CN114017641A - A portable publicity column for teaching education - Google Patents
A portable publicity column for teaching education Download PDFInfo
- Publication number
- CN114017641A CN114017641A CN202111292481.4A CN202111292481A CN114017641A CN 114017641 A CN114017641 A CN 114017641A CN 202111292481 A CN202111292481 A CN 202111292481A CN 114017641 A CN114017641 A CN 114017641A
- Authority
- CN
- China
- Prior art keywords
- plate
- fixed
- backup pad
- propaganda
- blackboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention provides a movable type publicity column for teaching education, which is characterized in that: including left socle, right branch frame, L type fixed plate, backup pad, first anchor clamps, propaganda blackboard, L type mounting panel, second anchor clamps and display screen, the left socle with the right branch frame is placed relatively, the left socle with the lower extreme of right branch frame respectively is fixed with a heel brace 1, the left socle with the top of right branch frame respectively is connected with an L type fixed plate through elevating system, the backup pad sets up between the L type fixed plate of L type fixed plate on the left socle and the L type fixed plate of right branch frame top, still be provided with position control mechanism between backup pad and the both sides L type fixed plate, the below at the backup pad is installed through first anchor clamps to the propaganda blackboard. The design has the advantages of simple structure, easy manufacture, practicality and high efficiency.
Description
Technical Field
The invention relates to the technical field of education propaganda, in particular to a movable type publicity column for teaching education.
Background
Education publicity column is as an effective means of education propaganda, need dispose in the street, park, people flow is intensive district such as market and campus, traditional publicity column adopts fixed installation, pillar and glass window need be installed in batches, the structural weight of pillar and glass window is great, need a large amount of workman's cooperation to accomplish the installation during installation, the installation is loaded down with trivial details, use cost is higher after the deployment, the deployment of considering traditional education publicity column is in the campus show information, for accomplishing the rational utilization of education publicity column show resource, the education publicity column that adopts the movable design adapts to campus education propaganda and uses more.
Disclosure of Invention
The invention provides a movable type publicity column for teaching education, wherein the front side and the rear side of a foot support are respectively provided with a roller assembly, and the publicity column is wholly inclined and supported by the roller assemblies, so that the publicity column is convenient to carry.
In order to solve the technical problem, the invention provides a movable type publicity column for teaching education, which is characterized in that: the blackboard comprises a left support, a right support, L-shaped fixing plates, a supporting plate, a first clamp, a propaganda blackboard, L-shaped mounting plates, a second clamp and a display screen, wherein the left support and the right support are oppositely arranged, the lower ends of the left support and the right support are respectively fixed with a foot support 1, the upper parts of the left support and the right support are respectively connected with the L-shaped fixing plates through a lifting mechanism, the supporting plate is arranged between the L-shaped fixing plates on the left support and the L-shaped fixing plates above the right support, a position adjusting mechanism is also arranged between the supporting plate and the L-shaped fixing plates on two sides, the propaganda blackboard is arranged below the supporting plate through the first clamp, the inner sides of the two L-shaped fixing plates above the left support and the right support are respectively fixed with the L-shaped mounting plates, and the two L-shaped mounting plates are respectively connected with the second clamp through an up-down sliding mechanism, the display screen is fixed between the two second clamps.
Further: elevating system constitute including fixing electric telescopic handle, transfer line and the lifter in the left socle and the right branch frame outside, the lifter is by threaded rod and guide bar from top to bottom even an organic whole and forms, the left socle with the guide hole with guide bar assorted has all been seted up at the top of right branch frame, the lower extreme swing joint of guide bar is in the guide hole, the threaded rod passes L type fixed plate, respectively be connected with a lock nut on the threaded rod of both sides about the L type fixed plate, the lock nut clamp of L type fixed plate through upper and lower both sides is fixed on the threaded rod, electric telescopic handle passes through the transfer line and connects the bottom at L type fixed plate.
And further: the position adjusting mechanism comprises a first side plate vertically fixed at the top of the L-shaped fixing plate, a guide cylinder arranged at the tops of two ends of the supporting plate, a second guide rod and a puller bolt, one end of the second guide rod is horizontally fixed on one side of the first side plate, the other end of the second guide rod penetrates through the guide cylinder, a threaded hole communicated with the inner space of the guide cylinder is formed in the top of the guide cylinder, the puller bolt is connected in the threaded hole and penetrates through the threaded hole to be in contact with the second guide rod in the guide cylinder, and the second guide rod is tightly fixed in the guide cylinder through friction force between the puller bolt and the second guide rod.
And further: the anti-falling mechanism is further arranged between the L-shaped fixing plate and the supporting plate and comprises a rope and a first spring, a second side plate is vertically fixed to the tops of the two ends of the supporting plate, one end, far away from the first side plate, of the second guide rod is connected with the second side plate through the first spring, and the two ends of the rope are connected to the first side plate and the second side plate respectively.
And further: the center department of backup pad still is connected with the pivot, the knob is installed to the upper end of pivot, the lower extreme of pivot passes the backup pad and connects the top at first anchor clamps, the propaganda blackboard is along with the pivot is together rotatory under the drive of first anchor clamps.
And further: still be provided with positioning mechanism between first anchor clamps and the backup pad, positioning mechanism includes the locating lever, set up in the backup pad with locating lever assorted through-hole, the top of first anchor clamps set up with locating lever assorted locating hole, the locating lever passes the backup pad along the through-hole and connects in the locating hole at first anchor clamps top.
And further: the utility model discloses a blackboard eraser with the blackboard eraser head, including first anchor clamps, first propelling movement electronic jar passes left side mounting panel and links to each other with the first brush that is used for cleaning propaganda blackboard front surface, install the electronic jar of second propelling movement on the mounting panel of the right side, the electronic jar of second propelling movement passes right side mounting panel and links to each other with the second brush that is used for cleaning propaganda blackboard rear surface.
And further: the upper sliding mechanism and the lower sliding mechanism comprise sliding rails vertically fixed on the inner side of the L-shaped mounting plate and sliding blocks vertically and slidably connected to the sliding rails, second threaded holes are formed in the side walls of the sliding blocks and face the outer walls of the sliding rails, second tightening bolts are connected into the second threaded holes and penetrate through the second threaded holes to be in contact with the sliding rails in the sliding blocks, the sliding blocks are fixedly connected with the sliding rails through friction force between the second tightening bolts and the sliding rails, and the second clamp is fixed to the sliding blocks.
And further: the lower extreme of L type mounting panel still the level is fixed with the bottom suspension fagging, there is the buffer board through second spring coupling on the bottom suspension fagging.
And further: the outer side of the left support is provided with a chalk box for placing chalk, the outer side of the right support is provided with a chalk box for placing chalk, and the front side, the rear side and the rear side of the foot support are provided with roller assemblies.
By adopting the structure, the roller assemblies are arranged on the front side and the rear side of the foot support, and the propaganda column is wholly inclined and is supported by the roller assemblies, so that the propaganda column is convenient to carry; in addition, the positions of the propaganda blackboard and the display screen can be adjusted through the lifting mechanism and the position adjusting mechanism, so that the practical performance is increased; the anti-falling mechanism and the buffer plate are arranged, so that unnecessary loss caused by falling of the propaganda blackboard and the display screen is prevented, and the safety performance is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a structural view of the position adjustment mechanism.
Fig. 3 is a partial structural view of the present invention.
Detailed Description
As shown in fig. 1, a movable publicity column for teaching education comprises a left support 2, a right support 3, an L-shaped fixing plate 5, a support plate 8, a first clamp 10, a publicity blackboard 11, an L-shaped mounting plate 7, a second clamp 14 and a display screen 15, wherein the left support and the right support are oppositely arranged, the lower ends of the left support and the right support are respectively fixed with a foot support 1, the upper parts of the left support and the right support are respectively connected with an L-shaped fixing plate through a lifting mechanism, the support plate 8 is arranged between the L-shaped fixing plate on the left support and the L-shaped fixing plate above the right support, a position adjusting mechanism is further arranged between the support plate and the L-shaped fixing plates on the two sides, the publicity blackboard is arranged below the support plate through the first clamp, the inner sides of the two L-shaped fixing plates above the left support and the right support are respectively fixed with an L-shaped mounting plate, and the two L-shaped mounting plates are respectively connected with a second clamp through an up-down sliding mechanism, and the display screen is fixed between the two second clamps. The invention can adjust the positions of the propaganda blackboard and the display screen through the lifting mechanism and the position adjusting mechanism, thereby playing a role of increasing the practical performance.
The lifting mechanism shown in fig. 1 comprises an electric telescopic rod 6, a transmission rod and a lifting rod 4 which are fixed on the outer sides of a left support and a right support, wherein the lifting rod is formed by connecting a threaded rod and a guide rod into a whole from top to bottom, the top of the left support and the top of the right support are provided with guide holes matched with the guide rod, the lower end of the guide rod is movably connected in the guide holes, the threaded rod penetrates through an L-shaped fixed plate, the threaded rods on the upper side and the lower side of the L-shaped fixed plate are respectively connected with a locking nut, the L-shaped fixed plate is fixed on the threaded rod through the clamping of the locking nuts on the upper side and the lower side, and the electric telescopic rod is connected to the bottom of the L-shaped fixed plate through the transmission rod.
The position adjusting mechanism shown in fig. 2 comprises a first side plate 21 vertically fixed at the top of an L-shaped fixing plate, a guide cylinder 23 arranged at the top of two ends of the supporting plate, a second guide rod 24 and a tightening bolt 26, wherein one end of the second guide rod is horizontally fixed at one side of the first side plate, the other end of the second guide rod penetrates through the guide cylinder, a threaded hole communicated with the inner space of the guide cylinder is formed in the top of the guide cylinder, the tightening bolt is connected in the threaded hole and penetrates through the threaded hole to be in contact with the second guide rod in the guide cylinder, and the second guide rod is tightly fixed in the guide cylinder through friction force between the tightening bolt and the second guide rod.
As shown in fig. 2, an anti-falling mechanism is further disposed between the L-shaped fixing plate and the supporting plate, the anti-falling mechanism includes a rope 27 and a first spring 25, a second side plate 22 is vertically fixed on the top of each of the two ends of the supporting plate, one end of the second guide rod, which is far away from the first side plate, is connected to the second side plate through the first spring, and the two ends of the rope are respectively connected to the first side plate and the second side plate.
The center of the supporting plate is also connected with a rotating shaft as shown in figure 1, a knob 9 is installed at the upper end of the rotating shaft, the lower end of the rotating shaft penetrates through the supporting plate to be connected to the top of the first clamp, and the propaganda blackboard rotates together with the rotating shaft under the driving of the first clamp.
As shown in fig. 1, a positioning mechanism is further disposed between the first clamp and the support plate, the positioning mechanism includes a positioning rod 35, a through hole matched with the positioning rod is disposed on the support plate, a positioning hole matched with the positioning rod is disposed at the top of the first clamp, and the positioning rod passes through the support plate along the through hole and is connected in the positioning hole at the top of the first clamp.
Both ends are fixed with left mounting panel 28 and right mounting panel 29 respectively about as shown in fig. 3 first anchor clamps, install the electronic jar 32 of first propelling movement on the mounting panel of a left side, the electronic jar of first propelling movement passes left mounting panel and links to each other with the first brush 30 that is used for wiping propaganda blackboard front surface, install the electronic jar 33 of second propelling movement on the mounting panel of the right side, the electronic jar of second propelling movement passes right mounting panel and is used for wiping propaganda blackboard rear surface's second brush 31 and links to each other.
The up-down sliding mechanism shown in fig. 1 includes a slide rail 12 vertically fixed on the inner side of the L-shaped mounting plate, and a slide block 13 vertically slidably connected to the slide rail, a second threaded hole is formed in the outer wall of the slide block facing the slide rail, a second tightening bolt is connected in the second threaded hole, the second tightening bolt passes through the second threaded hole to contact with the slide rail in the slide block, the slide block is fixedly connected to the slide rail through friction between the second tightening bolt and the slide rail, and the second clamp is fixed to the slide block.
The lower end of the L-shaped mounting plate shown in fig. 1 is also horizontally fixed with a lower support plate 16, to which a buffer plate 18 is connected through a second spring 17.
The outer side of the left bracket shown in fig. 1 is provided with a chalk box 19 for placing chalk, the outer side of the right bracket is provided with a chalk box 20 for placing chalk, and the front, back and rear sides of the foot support are provided with roller assemblies 34. The roller assemblies are arranged on the front side and the rear side of the foot supports, and the propaganda column is wholly inclined and supported by the roller assemblies, so that the propaganda column is convenient to carry.
The anti-falling mechanism and the buffer plate are further arranged, so that unnecessary loss caused by falling of the propaganda blackboard and the display screen is prevented, and the safety performance is improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a portable publicity column for teaching education which characterized in that: comprises a left bracket (2), a right bracket (3), an L-shaped fixing plate (5), a supporting plate (8), a first clamp (10), a propaganda blackboard (11), an L-shaped mounting plate (7), a second clamp (14) and a display screen (15), wherein the left bracket and the right bracket are oppositely arranged, the left bracket and the lower end of the right bracket are respectively fixed with a foot support (1), the upper parts of the left bracket and the right bracket are respectively connected with an L-shaped fixing plate through a lifting mechanism, the supporting plate (8) is arranged between the L-shaped fixing plate on the left bracket and the L-shaped fixing plate above the right bracket, a position adjusting mechanism is also arranged between the supporting plate and the L-shaped fixing plates on the two sides, the propaganda blackboard is arranged below the supporting plate through the first clamp, the L-shaped mounting plates are respectively fixed on the inner sides of the left bracket and the two L-shaped fixing plates above the right bracket, and the two L-shaped mounting plates are respectively connected with a second clamp through an up-down sliding mechanism, and the display screen is fixed between the two second clamps.
2. A portable billboard for educational education according to claim 1, further comprising: elevating system constitute including fixing electric telescopic handle (6), transfer line and lifter (4) in the left socle and the right branch frame outside, the lifter comprises threaded rod and guide bar and links into an organic whole from top to bottom, the left socle with the top of right branch frame has all been seted up with guide bar assorted guiding hole, the lower extreme swing joint of guide bar is in the guiding hole, the threaded rod passes L type fixed plate, respectively be connected with a lock nut on the threaded rod of both sides about the L type fixed plate, the lock nut clamp of L type fixed plate through upper and lower both sides is fixed on the threaded rod, electric telescopic handle passes through the transfer line and connects the bottom at L type fixed plate.
3. A portable billboard for educational education according to claim 1, further comprising: the position adjusting mechanism comprises a first side plate (21) vertically fixed at the top of the L-shaped fixing plate, a guide cylinder (23) arranged at the top of two ends of the supporting plate, a second guide rod (24) and a puller bolt (26), one end of the second guide rod is horizontally fixed at one side of the first side plate, the other end of the second guide rod penetrates through the guide cylinder, a threaded hole communicated with the inner space of the guide cylinder is formed in the top of the guide cylinder, the puller bolt is connected in the threaded hole and penetrates through the threaded hole to be in contact with the second guide rod in the guide cylinder, and the second guide rod is tightly fixed in the guide cylinder through friction force between the puller bolt and the second guide rod.
4. A portable billboard for educational education according to claim 2, wherein: l type fixed plate and backup pad between still be provided with and prevent weighing down the mechanism, prevent weighing down the mechanism and include rope (27) and first spring (25), the top at backup pad both ends still respectively vertically is fixed with a second curb plate (22), the one end that first curb plate was kept away from to the second guide arm is passed through first spring and is linked to each other with the second curb plate, the both ends of rope are connected respectively on first curb plate and second curb plate.
5. A portable billboard for educational education according to claim 1, further comprising: the center department of backup pad still is connected with the pivot, knob (9) are installed to the upper end of pivot, the lower extreme of pivot passes the backup pad and connects the top at first anchor clamps, the propaganda blackboard is along with the pivot is together rotatory under the drive of first anchor clamps.
6. The portable billboard for educational education of claim 5, wherein: still be provided with positioning mechanism between first anchor clamps and the backup pad, positioning mechanism includes locating lever (35), seted up in the backup pad with locating lever assorted through-hole, the top of first anchor clamps seted up with locating lever assorted locating hole, the locating lever passes the backup pad along the through-hole and connects in the locating hole at first anchor clamps top.
7. A portable billboard for educational education according to claim 1, further comprising: both ends are fixed with left mounting panel (28) and right mounting panel (29) respectively about first anchor clamps, install first propelling movement electronic jar (32) on the mounting panel of a left side, first propelling movement electronic jar passes left mounting panel and links to each other with first brush (30) that are used for cleaning propaganda blackboard front surface, install second propelling movement electronic jar (33) on the mounting panel of the right side, second propelling movement electronic jar passes right mounting panel and links to each other with second brush (31) that are used for cleaning propaganda blackboard rear surface.
8. A portable billboard for educational education according to claim 1, further comprising: the upper sliding mechanism and the lower sliding mechanism comprise a sliding rail (12) vertically fixed on the inner side of the L-shaped mounting plate and a sliding block (13) vertically connected onto the sliding rail in a sliding mode, a second threaded hole is formed in the side wall of the sliding block and faces the outer wall of the sliding rail, a second tightening bolt is connected into the second threaded hole, the second tightening bolt penetrates through the second threaded hole to be in contact with the sliding rail in the sliding block, the sliding block is fixedly connected with the sliding rail through friction force between the second tightening bolt and the sliding rail, and the second clamp is fixed onto the sliding block.
9. A portable billboard for educational education according to claim 8, wherein: the lower extreme of L type mounting panel still the level is fixed with bottom suspension fagging (16), be connected with buffer board (18) through second spring (17) on the bottom suspension fagging.
10. A portable billboard for educational education according to claim 1, further comprising: the outer side of the left support is provided with a chalk box (19) for placing chalk, the outer side of the right support is provided with a chalk box (20) for placing chalk, and the front side, the rear side and the rear side of the foot support are provided with roller assemblies (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292481.4A CN114017641B (en) | 2021-11-03 | 2021-11-03 | A portable publicity column for teaching education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292481.4A CN114017641B (en) | 2021-11-03 | 2021-11-03 | A portable publicity column for teaching education |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114017641A true CN114017641A (en) | 2022-02-08 |
| CN114017641B CN114017641B (en) | 2023-06-09 |
Family
ID=80060209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111292481.4A Active CN114017641B (en) | 2021-11-03 | 2021-11-03 | A portable publicity column for teaching education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114017641B (en) |
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| CN212873897U (en) * | 2020-09-29 | 2021-04-02 | 清远网软网络科技有限公司 | Tourism publicity column based on three-dimensional data acquisition |
| CN214042481U (en) * | 2020-12-31 | 2021-08-24 | 东莞市美鼎实业有限公司 | Perpendicular compression fittings of self-service terminal |
| CN214164578U (en) * | 2020-12-09 | 2021-09-10 | 秦皇岛职业技术学院 | Expandable blackboard for teaching |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004012507A (en) * | 2002-06-03 | 2004-01-15 | First:Kk | Indication unit adapted to sloping ground |
| CN107355657A (en) * | 2017-07-14 | 2017-11-17 | 滁州市状元郎电子科技有限公司 | A kind of moveable adjustable type electronic whiteboard bracket |
| WO2019201352A1 (en) * | 2018-04-20 | 2019-10-24 | 深圳市道通科技股份有限公司 | Vehicle calibration apparatus |
| CN109019419A (en) * | 2018-09-11 | 2018-12-18 | 王成 | A kind of auto repair hanger |
| CN209721506U (en) * | 2019-02-21 | 2019-12-03 | 嘉兴同嘉智能技术有限公司 | Lifting device is used in a kind of installation of intelligent building glass |
| US20200347986A1 (en) * | 2019-05-05 | 2020-11-05 | Loctek Inc | Electric Lifting Media Wall |
| CN210052310U (en) * | 2019-05-08 | 2020-02-11 | 王玲 | Teaching aid for mathematical education |
| CN212322441U (en) * | 2020-02-15 | 2021-01-08 | 秦慧媛 | Book editing teaching aid |
| CN111503486A (en) * | 2020-04-23 | 2020-08-07 | 淄博职业学院 | Tutor is with think political affairs education device based on big data |
| CN212873897U (en) * | 2020-09-29 | 2021-04-02 | 清远网软网络科技有限公司 | Tourism publicity column based on three-dimensional data acquisition |
| CN214164578U (en) * | 2020-12-09 | 2021-09-10 | 秦皇岛职业技术学院 | Expandable blackboard for teaching |
| CN214042481U (en) * | 2020-12-31 | 2021-08-24 | 东莞市美鼎实业有限公司 | Perpendicular compression fittings of self-service terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114017641B (en) | 2023-06-09 |
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